Fume-arrester for smelting-furnaces.



H. S. DOUBLE. FUME ABBESTEB FOB SMELTING FURNACES.

APPLICATION FILED MAY 12, 1908. Patented Apr. 6

3140mm /%fazajf jpzziz PATE N T )FFICE.

. HORACE 8. DOUBLE, OF UOOKE, MONTANA.

FUME-ARRESTER non SMELTING-FURNACES.

. all whom it may com-em:

Be it known that I, IIORAGE S. DOUBLE, a

citizen of the United States, residing at ,d

Cooke, in the county of Park and'St-ateof Montana, have invented new and useful IIn-Q provements 1n Fume-Arresters for Smeltm' thefollowmg 1s a spec1h-' umaces, of which cation.

This invention relates to fume arresters for smelting furnaces, the object in view'being to provide in connection with a smeltingfurnace, means for saving the values which ordinarily escape in the fumes passing out through the chimney, the invention being deslgned for use 111 connection with any con-- 1 struction of smelting furnace and in addition to the value saving characteristics thereof, the device of this invention overcoming in a great measure the smoke nuisance by promoting more perfect combustion of the gases which ordinarily escape from the furnace.

With the above general object in view, the invention consists in the novel construction, combination and arrangement of parts as herein fully described, illustrated and claimed.

In' carrying out the resent invention, I

provide a stand pipe 3 orming a recipit'ation chamber 4 and place the'smo e pipe 2 in communication with said chamber 4, as clearly shown in Fig. 1. Above the point of entrance of the smoke flue 2, the stand pipe 3 is incased by a water jacket 5 while the inner wall of said jacket or in other words, the wall of the stand pipe 3 is provided with a multiplicity of fine erforatlons 6 adapted to admit a correspon ing number of fine streams or jets of water into the chamber 4. At one side of the water jacket 5 there is arranged a water pressure equalizer 7 shown in the form of a cylinder which is laced in communication with the water acket 5 by an interposed nipple .or connec- Specification of Letters Patent. Application aied Kay 12, 1908, Serial No. 432,406.

Patented April 6, 909.

" tion 'Si l-Qdmmunicating with one end of the "equalizer cylinder 7 is "a water ump 9 r ven in any suitable mannerand raving a water supply pipe 10 leading thereto. In'

the opposite end of the equalizer cylinder 7 there 1s arranged a follower piston 11, the stem 12 of which passes out of the end of the cylinder through a stuffing box 13 while between the piston 11 and the adjacent end of the cylinder there is -arranged an expansion spring 14, which, by reason of its resistance to the action of the pump in forcing water into the equalizer, acts to equalize the pressure upon the water in the jacket 5 surrounding the precipitation chamber. This insures the constant ressure to the water and the proper distri ution of the fine sprays of water over and throu h the smoke and fumes passing from the ue 2 into the chamher 4 and u ward past the perforations 6 and outwardtllrough the dischar e stack 15. The result isjthat ajconsiderab e portion of the value contained the smoke and fumes are precipitated to the bottom of the chamber 4 where the stand pipe 3 is rovided with a man hole over which isplace a manhole cover 16 which gives access to the lower )ortion ofthe preci itation chamber to ena 1c the contents t ereof to be removed at suitable periods.

The invention hereinabove described acts as a preventative of the smoke nuisance by sprin ling the oisonous gases, and the solid particles, 1; e latter being precipitated to the bottom of the stack. The sprinkling of the gases causes their absorption by the water or causes condensation thereof. Some minerals, such as gold, silver and copper are precipitated by the application of Water in the manner set forth, while arsenic, antimony or other soluble minerals are condensed which condensation falls to the bottom of the stand pipe from which it may be removed.

I claim The combination with a smelting furnace, of a precipitation chamber inv communication with the smoke flue of said furnace, a water jacket surrounding said chamber above the point of entrance of the smoke flue and having the inner wall thereof perforated to admit water to the precipitation said chamber being, closed on all i in testimony whereof l. alrix mv signature Sl(l(.-S cxcepttlie perforated inner side a. prcsl in presence of two witnesses.

sure equalizing cylinder communicating w th HORACF DOUB] F J K I J J.

chamber,

said jacket, 2 pump for forcing water into said cylinder, and a spring pressed follower piston working in said cylinder, substantially as and for the purpose described.

Witnesses:

Tnos. M. ltoimms, WM. BAUsn. 

